Invention Grant
- Patent Title: Optical glass
- Patent Title (中): 光学玻璃
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Application No.: US12782968Application Date: 2010-05-19
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Publication No.: US08367572B2Publication Date: 2013-02-05
- Inventor: Akio Oogaki
- Applicant: Akio Oogaki
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2009-124083 20090522
- Main IPC: C03C3/16
- IPC: C03C3/16 ; C03C3/19 ; C03C3/17
Abstract:
An optical glass has a composition including: 40 to 65 mass % of P2O5, and 0 to less than 5 mass % of Li2O+Na2O+K2O. In the optical glass, (MgO+CaO)/(Li2O+Na2O+K2O) which is a ratio of the total content expressed in mass % of MgO and CaO to the total content expressed in mass % of Li2O, Na2O, and K2O, is in a range from 6 to 38.
Public/Granted literature
- US20100298111A1 OPTICAL GLASS Public/Granted day:2010-11-25
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